pentahoデータ統合クライアントとhadoopの下でHbaseを接続できません

Question

ローカルのpentahoデータ導入クライアントからHbaseサーバー（over hadoop）にデータをロードしようとしていますが、SocketTimeoutExceptionエラーが発生するたびに失敗します。 以下のエラーメッセージが表示されます。 誰でもこの問題を解決するのに役立つことができます。ありがとうございます。

org.apache.hadoop.hbase.client.RetriesExhaustedException: Failed after attempts=36, exceptions: 
Wed Apr 13 16:38:25 WEST 2016, null, java.net.SocketTimeoutException: callTimeout=60000, callDuration=75228: row 'pentaho_mappings,,' on table 'hbase:meta' at region=hbase:meta,,1.1588230740, hostname=localhost,16020,1460561069506, seqNum=0 
at org.apache.hadoop.hbase.client.RpcRetryingCallerWithReadReplicas.throwEnrichedException(RpcRetryingCallerWithReadReplicas.java:270) 
at org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:203) 
at org.apache.hadoop.hbase.client.ScannerCallableWithReplicas.call(ScannerCallableWithReplicas.java:57) 
at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithoutRetries(RpcRetryingCaller.java:200) 
at org.apache.hadoop.hbase.client.ClientScanner.call(ClientScanner.java:294) 
at org.apache.hadoop.hbase.client.ClientScanner.nextScanner(ClientScanner.java:269) 
at org.apache.hadoop.hbase.client.ClientScanner.initializeScannerInConstruction(ClientScanner.java:141) 
at org.apache.hadoop.hbase.client.ClientScanner.<init>(ClientScanner.java:136) 
at org.apache.hadoop.hbase.client.HTable.getScanner(HTable.java:886) 
at org.apache.hadoop.hbase.MetaTableAccessor.fullScan(MetaTableAccessor.java:601) 
at org.apache.hadoop.hbase.MetaTableAccessor.tableExists(MetaTableAccessor.java:365) 
at org.apache.hadoop.hbase.client.HBaseAdmin.tableExists(HBaseAdmin.java:310) 
at org.apache.hadoop.hbase.client.HBaseAdmin.tableExists(HBaseAdmin.java:320) 
at org.pentaho.hbase.shim.common.CommonHBaseConnection.tableExists(CommonHBaseConnection.java:182) 
at org.pentaho.hbase.shim.cdh54.HBaseConnectionImpl.access$801(HBaseConnectionImpl.java:32) 
at org.pentaho.hbase.shim.cdh54.HBaseConnectionImpl$9.call(HBaseConnectionImpl.java:172) 
at org.pentaho.hbase.shim.cdh54.HBaseConnectionImpl$9.call(HBaseConnectionImpl.java:168) 
at org.pentaho.hbase.shim.cdh54.HBaseConnectionImpl.doWithContextClassLoader(HBaseConnectionImpl.java:63) 
at org.pentaho.hbase.shim.cdh54.HBaseConnectionImpl.tableExists(HBaseConnectionImpl.java:168) 
at org.pentaho.hbase.mapping.MappingAdmin.getMappedTables(MappingAdmin.java:557) 
at org.pentaho.di.trans.steps.hbaseoutput.HBaseOutputDialog.setupMappedTableNames(HBaseOutputDialog.java:796) 
at org.pentaho.di.trans.steps.hbaseoutput.HBaseOutputDialog.access$900(HBaseOutputDialog.java:82) 
at org.pentaho.di.trans.steps.hbaseoutput.HBaseOutputDialog$7.widgetSelected(HBaseOutputDialog.java:383) 
at org.eclipse.swt.widgets.TypedListener.handleEvent(Unknown Source) 
at org.eclipse.swt.widgets.EventTable.sendEvent(Unknown Source) 
at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source) 
at org.eclipse.swt.widgets.Display.runDeferredEvents(Unknown Source) 
at org.eclipse.swt.widgets.Display.readAndDispatch(Unknown Source) 
at org.pentaho.di.trans.steps.hbaseoutput.HBaseOutputDialog.open(HBaseOutputDialog.java:587) 
at org.pentaho.di.ui.spoon.delegates.SpoonStepsDelegate.editStep(SpoonStepsDelegate.java:124) 
at org.pentaho.di.ui.spoon.Spoon.editStep(Spoon.java:8773) 
at org.pentaho.di.ui.spoon.trans.TransGraph.editStep(TransGraph.java:3061) 
at org.pentaho.di.ui.spoon.trans.TransGraph.mouseDoubleClick(TransGraph.java:747) 
at org.eclipse.swt.widgets.TypedListener.handleEvent(Unknown Source) 
at org.eclipse.swt.widgets.EventTable.sendEvent(Unknown Source) 
at org.eclipse.swt.widgets.Widget.sendEvent(Unknown Source) 
at org.eclipse.swt.widgets.Display.runDeferredEvents(Unknown Source) 
at org.eclipse.swt.widgets.Display.readAndDispatch(Unknown Source) 
at org.pentaho.di.ui.spoon.Spoon.readAndDispatch(Spoon.java:1328) 
at org.pentaho.di.ui.spoon.Spoon.waitForDispose(Spoon.java:8000) 
at org.pentaho.di.ui.spoon.Spoon.start(Spoon.java:9251) 
at org.pentaho.di.ui.spoon.Spoon.main(Spoon.java:663) 
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) 
at java.lang.reflect.Method.invoke(Unknown Source) 
at org.pentaho.commons.launcher.Launcher.main(Launcher.java:92) 
Caused by: java.net.SocketTimeoutException: callTimeout=60000, callDuration=75228: row 'pentaho_mappings,,' on table 'hbase:meta' at region=hbase:meta,,1.1588230740, hostname=localhost,16020,1460561069506, seqNum=0 
at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithRetries(RpcRetryingCaller.java:159) 
at org.apache.hadoop.hbase.client.ResultBoundedCompletionService$QueueingFuture.run(ResultBoundedCompletionService.java:64) 
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) 
at java.lang.Thread.run(Unknown Source) 
Caused by: java.net.ConnectException: Connection refused: no further information 
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) 
at sun.nio.ch.SocketChannelImpl.finishConnect(Unknown Source) 
at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206) 
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:530) 
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:494) 
at org.apache.hadoop.hbase.ipc.RpcClientImpl$Connection.setupConnection(RpcClientImpl.java:404) 
at org.apache.hadoop.hbase.ipc.RpcClientImpl$Connection.setupIOstreams(RpcClientImpl.java:710) 
at org.apache.hadoop.hbase.ipc.RpcClientImpl$Connection.writeRequest(RpcClientImpl.java:881) 
at org.apache.hadoop.hbase.ipc.RpcClientImpl$Connection.tracedWriteRequest(RpcClientImpl.java:850) 
at org.apache.hadoop.hbase.ipc.RpcClientImpl.call(RpcClientImpl.java:1174) 
at org.apache.hadoop.hbase.ipc.AbstractRpcClient.callBlockingMethod(AbstractRpcClient.java:216) 
at org.apache.hadoop.hbase.ipc.AbstractRpcClient$BlockingRpcChannelImplementation.callBlockingMethod(AbstractRpcClient.java:300) 
at org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$BlockingStub.scan(ClientProtos.java:31751) 
at org.apache.hadoop.hbase.client.ScannerCallable.openScanner(ScannerCallable.java:337) 
at org.apache.hadoop.hbase.client.ScannerCallable.call(ScannerCallable.java:192) 
at org.apache.hadoop.hbase.client.ScannerCallable.call(ScannerCallable.java:62) 
at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithoutRetries(RpcRetryingCaller.java:200) 
at org.apache.hadoop.hbase.client.ScannerCallableWithReplicas$RetryingRPC.call(ScannerCallableWithReplicas.java:316) 
at org.apache.hadoop.hbase.client.ScannerCallableWithReplicas$RetryingRPC.call(ScannerCallableWithReplicas.java:290) 
at org.apache.hadoop.hbase.client.RpcRetryingCaller.callWithRetries(RpcRetryingCaller.java:126) 
... 4 more 

Answer 1

HBaseの例外を取り除くためのHBase-default.xmlの中に10分に設定し、このプロパティの値が「hbase.client.scanner.timeout.period」をご確認ください。